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Add an alternative way to number the USB endpoints 

Two options available:
- relative numbering (USB_RELATIVE_EP_NUM = 1) - default
- absolute numbering (USB_RELATIVE_EP_NUM = 0) - new!
This commit is contained in:
Kamil Tomaszewski 2019-10-01 10:00:32 +02:00
parent f4922a530a
commit 7aefcc449a
3 changed files with 80 additions and 26 deletions
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2
ports/atmel-samd/mpconfigport.mk
View File

@ -22,7 +22,7 @@ CIRCUITPY_FREQUENCYIO = 0
CIRCUITPY_TOUCHIO_USE_NATIVE = 1
# SAMD21 needs separate endpoint pairs for MSC BULK IN and BULK OUT, otherwise it's erratic.
USB_MSC_NUM_ENDPOINT_PAIRS = 2
USB_MSC_EP_NUM_OUT = 1
endif
# Put samd51-only choices here.

49
supervisor/supervisor.mk
View File

@ -94,9 +94,40 @@ ifndef USB_HID_DEVICES
USB_HID_DEVICES = "KEYBOARD,MOUSE,CONSUMER,GAMEPAD"
endif
# SAMD21 needs separate endpoint pairs for MSC BULK IN and BULK OUT, otherwise it's erratic.
ifndef USB_MSC_NUM_ENDPOINT_PAIRS
USB_MSC_NUM_ENDPOINT_PAIRS = 1
ifndef USB_RELATIVE_EP_NUM
USB_RELATIVE_EP_NUM = 1
endif
ifndef USB_CDC_EP_NUM_NOTIFICATION
USB_CDC_EP_NUM_NOTIFICATION = 0
endif
ifndef USB_CDC_EP_NUM_DATA_OUT
USB_CDC_EP_NUM_DATA_OUT = 0
endif
ifndef USB_CDC_EP_NUM_DATA_IN
USB_CDC_EP_NUM_DATA_IN = 0
endif
ifndef USB_MSC_EP_NUM_OUT
USB_MSC_EP_NUM_OUT = 0
endif
ifndef USB_MSC_EP_NUM_IN
USB_MSC_EP_NUM_IN = 0
endif
ifndef USB_HID_EP_NUM_IN
USB_HID_EP_NUM_IN = 0
endif
ifndef USB_MIDI_EP_NUM_OUT
USB_MIDI_EP_NUM_OUT = 0
endif
ifndef USB_MIDI_EP_NUM_IN
USB_MIDI_EP_NUM_IN = 0
endif
SUPERVISOR_O = $(addprefix $(BUILD)/, $(SRC_SUPERVISOR:.c=.o)) $(BUILD)/autogen_display_resources.o
@ -116,9 +147,17 @@ autogen_usb_descriptor.intermediate: ../../tools/gen_usb_descriptor.py Makefile
--vid $(USB_VID)\
--pid $(USB_PID)\
--serial_number_length $(USB_SERIAL_NUMBER_LENGTH)\
--devices $(USB_DEVICES)\
--devices $(USB_DEVICES)\
--hid_devices $(USB_HID_DEVICES)\
--msc_num_endpoint_pairs $(USB_MSC_NUM_ENDPOINT_PAIRS)\
--relative_ep_num $(USB_RELATIVE_EP_NUM)\
--cdc_ep_num_notification $(USB_CDC_EP_NUM_NOTIFICATION)\
--cdc_ep_num_data_out $(USB_CDC_EP_NUM_DATA_OUT)\
--cdc_ep_num_data_in $(USB_CDC_EP_NUM_DATA_IN)\
--msc_ep_num_out $(USB_MSC_EP_NUM_OUT)\
--msc_ep_num_in $(USB_MSC_EP_NUM_IN)\
--hid_ep_num_in $(USB_HID_EP_NUM_IN)\
--midi_ep_num_out $(USB_MIDI_EP_NUM_OUT)\
--midi_ep_num_in $(USB_MIDI_EP_NUM_IN)\
--output_c_file $(BUILD)/autogen_usb_descriptor.c\
--output_h_file $(BUILD)/genhdr/autogen_usb_descriptor.h

55
tools/gen_usb_descriptor.py
View File

@ -32,8 +32,24 @@ parser.add_argument('--devices', type=lambda l: tuple(l.split(',')), default=DEF
help='devices to include in descriptor (AUDIO includes MIDI support)')
parser.add_argument('--hid_devices', type=lambda l: tuple(l.split(',')), default=DEFAULT_HID_DEVICES,
help='HID devices to include in HID report descriptor')
parser.add_argument('--msc_num_endpoint_pairs', type=int, default=1,
help='Use 1 or 2 endpoint pairs for MSC (1 bidirectional, or 1 input + 1 output (required by SAMD21))')
parser.add_argument('--relative_ep_num', type=int, default=1,
help='use relative(1) or absolute(0) endpoint number')
parser.add_argument('--cdc_ep_num_notification', type=int, default=0,
help='endpoint number of CDC NOTIFICATION')
parser.add_argument('--cdc_ep_num_data_out', type=int, default=0,
help='endpoint number of CDC DATA OUT')
parser.add_argument('--cdc_ep_num_data_in', type=int, default=0,
help='endpoint number of CDC DATA IN')
parser.add_argument('--msc_ep_num_out', type=int, default=0,
help='endpoint number of MSC OUT')
parser.add_argument('--msc_ep_num_in', type=int, default=0,
help='endpoint number of MSC IN')
parser.add_argument('--hid_ep_num_in', type=int, default=0,
help='endpoint number of HID IN')
parser.add_argument('--midi_ep_num_out', type=int, default=0,
help='endpoint number of MIDI OUT')
parser.add_argument('--midi_ep_num_in', type=int, default=0,
help='endpoint number of MIDI IN')
parser.add_argument('--output_c_file', type=argparse.FileType('w'), required=True)
parser.add_argument('--output_h_file', type=argparse.FileType('w'), required=True)
@ -47,10 +63,6 @@ unknown_hid_devices = list(frozenset(args.hid_devices) - ALL_HID_DEVICES_SET)
if unknown_hid_devices:
raise ValueError("Unknown HID devices(s)", unknown_hid_devices)
if args.msc_num_endpoint_pairs not in (1, 2):
raise ValueError("--msc_num_endpoint_pairs must be 1 or 2")
class StringIndex:
"""Assign a monotonically increasing index to each unique string. Start with 0."""
string_to_index = {}
@ -120,7 +132,7 @@ cdc_comm_interface = standard.InterfaceDescriptor(
cdc_union,
standard.EndpointDescriptor(
description="CDC comm in",
bEndpointAddress=0x0 | standard.EndpointDescriptor.DIRECTION_IN,
bEndpointAddress=args.cdc_ep_num_notification | standard.EndpointDescriptor.DIRECTION_IN,
bmAttributes=standard.EndpointDescriptor.TYPE_INTERRUPT,
wMaxPacketSize=0x0040,
bInterval=0x10)
@ -133,11 +145,11 @@ cdc_data_interface = standard.InterfaceDescriptor(
subdescriptors=[
standard.EndpointDescriptor(
description="CDC data out",
bEndpointAddress=0x0 | standard.EndpointDescriptor.DIRECTION_OUT,
bEndpointAddress=args.cdc_ep_num_data_out | standard.EndpointDescriptor.DIRECTION_OUT,
bmAttributes=standard.EndpointDescriptor.TYPE_BULK),
standard.EndpointDescriptor(
description="CDC data in",
bEndpointAddress=0x0 | standard.EndpointDescriptor.DIRECTION_IN,
bEndpointAddress=args.cdc_ep_num_data_in | standard.EndpointDescriptor.DIRECTION_IN,
bmAttributes=standard.EndpointDescriptor.TYPE_BULK),
])
@ -153,14 +165,12 @@ msc_interfaces = [
subdescriptors=[
standard.EndpointDescriptor(
description="MSC in",
bEndpointAddress=0x0 | standard.EndpointDescriptor.DIRECTION_IN,
bEndpointAddress=args.msc_ep_num_in | standard.EndpointDescriptor.DIRECTION_IN,
bmAttributes=standard.EndpointDescriptor.TYPE_BULK,
bInterval=0),
standard.EndpointDescriptor(
description="MSC out",
# SAMD21 needs to use a separate pair of endpoints for MSC.
bEndpointAddress=((0x1 if args.msc_num_endpoint_pairs == 2 else 0x0) |
standard.EndpointDescriptor.DIRECTION_OUT),
bEndpointAddress=(args.msc_ep_num_out | standard.EndpointDescriptor.DIRECTION_OUT),
bmAttributes=standard.EndpointDescriptor.TYPE_BULK,
bInterval=0)
]
@ -197,7 +207,7 @@ else:
# and will fail (possibly silently) if both are not supplied.
hid_endpoint_in_descriptor = standard.EndpointDescriptor(
description="HID in",
bEndpointAddress=0x0 | standard.EndpointDescriptor.DIRECTION_IN,
bEndpointAddress=args.hid_ep_num_in | standard.EndpointDescriptor.DIRECTION_IN,
bmAttributes=standard.EndpointDescriptor.TYPE_INTERRUPT,
bInterval=8)
@ -267,12 +277,12 @@ audio_midi_interface = standard.InterfaceDescriptor(
),
standard.EndpointDescriptor(
description="MIDI data out to CircuitPython",
bEndpointAddress=0x0 | standard.EndpointDescriptor.DIRECTION_OUT,
bEndpointAddress=args.midi_ep_num_out | standard.EndpointDescriptor.DIRECTION_OUT,
bmAttributes=standard.EndpointDescriptor.TYPE_BULK),
midi.DataEndpointDescriptor(baAssocJack=[midi_in_jack_emb]),
standard.EndpointDescriptor(
description="MIDI data in from CircuitPython",
bEndpointAddress=0x0 | standard.EndpointDescriptor.DIRECTION_IN,
bEndpointAddress=args.midi_ep_num_in | standard.EndpointDescriptor.DIRECTION_IN,
bmAttributes=standard.EndpointDescriptor.TYPE_BULK,
bInterval = 0x0),
midi.DataEndpointDescriptor(baAssocJack=[midi_out_jack_emb]),
@ -313,10 +323,15 @@ if 'HID' in args.devices:
if 'AUDIO' in args.devices:
interfaces_to_join.append(audio_interfaces)
# util.join_interfaces() will renumber the endpoints to make them unique across descriptors,
# and renumber the interfaces in order. But we still need to fix up certain
# interface cross-references.
interfaces = util.join_interfaces(*interfaces_to_join)
if args.relative_ep_num:
# util.join_interfaces() will renumber the endpoints to make them unique across descriptors,
# and renumber the interfaces in order. But we still need to fix up certain
# interface cross-references.
interfaces = util.join_interfaces(*interfaces_to_join)
else:
# util.renumbers_interfaces() will renumber the interfaces in order. But we still need to
# fix up certain interface cross-references.
interfaces = util.renumbers_interfaces(*interfaces_to_join)
# Now adjust the CDC interface cross-references.